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25 agos 2020 año - Polio

Descripción:

Africa is declared free of wild polio, the second virus to be eradicated from the continent since smallpox 40 years previously

Añadido al timeline:

2020 and future

ByColin O'Donnell

28 dic 2020

1

0

1428

fecha:

25 agos 2020 año

Ahora mismo

~ 5 years and 2 months ago

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